Quick-Release Bearing Holder

Good idea Catboy. I think the best solution would be to machine a slot
in the bottom part of the collar and fabricate a level that would fit
into it. That way the body of the collar would protect the level and
mechanism.

--
Jim_Rob - Old Man

TTFN

JR

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Eric, that would just get cumbersome. THe easiest thing to do is have
the quick release placed in a different area, such as above the clamp on
the frame. That's where I put mine, and I think it'd work. I'm just too
lazy to actually build it, since I have so many other things going on in
the frame.

--
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Eric, that would just get cumbersome. THe easiest thing to do is have
the quick release placed in a different area, such as above the clamp on
the frame. That's where I put mine, and I think it'd work. I'm just too
lazy to actually build it, since I have so many other things going on in
the frame.

--
gerblefranklin - Trials Unicyclist

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How would that work Bevan? I am a bit confused... Would you then hinge
the frame? or hinge the QR outwards? I think my ide would work in
theory, but just wouldn't be able to be both strong enough to hold up,
and yet not in the way. But I could be wrong, my idea could work. I just
don't see why we can't just put a willte effort into it and unscrew the
bearing holders if we need to switch the wheel. I mean... it takes less
than 5 minutes to do.

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How would that work Bevan? I am a bit confused... Would you then hinge
the frame? or hinge the QR outwards? I think my ide would work in
theory, but just wouldn't be able to be both strong enough to hold up,
and yet not in the way. But I could be wrong, my idea could work. I just
don't see why we can't just put a willte effort into it and unscrew the
bearing holders if we need to switch the wheel. I mean... it takes less
than 5 minutes to do.

--
Catboy - RIP Unibiker

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whoa. those are super nice. i want at least 2 pair, i would put them on
my muni and my freestyle uni. can i get a date on when these frames will
be ready for buying?

great work man.

--
shadowuni - Crispety, crunchety, peanut-buttery

"No one is taller than the last man standing"
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whoa. those are super nice. i want at least 2 pair, i would put them on
my muni and my freestyle uni. can i get a date on when these frames will
be ready for buying?

great work man.

--
shadowuni - Crispety, crunchety, peanut-buttery

"No one is taller than the last man standing"
"Three phases of persuasion: Polite request, well in excess of your pain
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I made a 3D Design to firther clarify my idea, and to help point out
design flaws(there has to be something). If you could get a semi-strong
matertial, like steel or something, that could hold up to most abuse
without denting in(beyond repair) or making the clamp suceptable to
injury I don't see why this couldn't be used for converting a muni to a
cruiser and visa versa. I am sure it isn't the greates idea for street
and trials where the bearing clamp will be constantly abused with
grabs,and what-not, but Why not just use it for uni's that aren't going
to be destroying the bearing clamp.
open face
solid cover-peice

+----------------------------------------------------------------+
| Attachment filename: bearing3d.jpg |
|Download attachment: http://www.unicyclist.com/attachment/265217|
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I made a 3D Design to firther clarify my idea, and to help point out
design flaws(there has to be something). If you could get a semi-strong
matertial, like steel or something, that could hold up to most abuse
without denting in(beyond repair) or making the clamp suceptable to
injury I don't see why this couldn't be used for converting a muni to a
cruiser and visa versa. I am sure it isn't the greates idea for street
and trials where the bearing clamp will be constantly abused with
grabs,and what-not, but Why not just use it for uni's that aren't going
to be destroying the bearing clamp.
open face
solid cover-peice

+----------------------------------------------------------------+
| Attachment filename: bearing3d.jpg |
|Download attachment: http://www.unicyclist.com/attachment/265217|
+----------------------------------------------------------------+

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This is a great advance in unicycle technology; I can't wait until it
gets into production frames. In addition to the obvious benefits in
terms of changing tires, it would also help me quite a bit with my
kinetic sculpture transitions from the Gazz back to the Big Apple.

Jim: Let me know if you're going to wind up in the Bay Area any time
soon. A lot of our trails are waterlogged right now, but there are
still places you can find to ride.

--
tholub - Kinetic Sculptor
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Hey Tom;

Thanks, yes I'm hoping they get into production soon too. I am looking
at the last week in January/first week in Feb to be out in the Bay Area.
I'll give you a heads up when I finalize my plans. Hope things dry out
for you out there!

--
Jim_Rob - Old Man

TTFN

JR

"Riding uphill on a unicycle sucks", Walt, Nationally-ranked singlespeed
MTB racer
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Jim_Rob said:

*Hey Tom;

Thanks, yes I'm hoping they get into production soon too. I am looking
at the last week in January/first week in Feb to be out in the Bay
Area. I'll give you a heads up when I finalize my plans. Hope things
dry out for you out there! *

I'd like to get in on this too. I'm in SF and can make it out to the
East bay for a ride pretty often.

--
gerblefranklin - Trials Unicyclist

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Catboy said:

*I made a 3D Design to firther clarify my idea, and to help point out
design flaws(there has to be something). If you could get a
semi-strong matertial, like steel or something, that could hold up to
most abuse without denting in(beyond repair) or making the clamp
suceptable to injury I don't see why this couldn't be used for
converting a muni to a cruiser and visa versa. I am sure it isn't the
greates idea for street and trials where the bearing clamp will be
constantly abused with grabs,and what-not, but Why not just use it for
uni's that aren't going to be destroying the bearing clamp.
open face
solid cover-peice *

By the time you've screwed on that cover or removed it, you'd have
gotten normal bearing caps off.

--
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I don't see any need to design a cover or other protective piece for the
quick release lever. As long as the uni isn't used for pedal grabs and
crank grabs it will be fine. It would be perfectly fine for the way I
ride my muni. Even in cases where I slip off the side of a skinny it
would be very very unlikely to break the lever even if I did hit it on
something on the way down.

My concern would be accidental opening due to vibration or hard impulse
force (landing a big drop). There isn't a lot of clamping force on the
bearing housing. If there is too much clamping force you will bind the
bearing. So there isn't going to be a lot of back force on the quick
release to prevent accidental opening due to vibration or impulse force.
This would mostly depend on the shape of the cam that the quick release
uses. If the QR used here has a tendency to pop open it might be
necessary to file a small flat area on the cam to get it to lock in
place when closed.

--
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I think that this design would be implemented best on touring unicycles,
such as cokers or 29ers.

It may work well on a muni if you don't do any natty whilst on a ride.
Even if you did hit it a few times, I think it could withstand a fairly
good amount of punishment without being hurt.

--
digitalattrition - Single Wheeled Attack Team

Of every one hundred men, ten shouldn't even be there, eighty are
nothing but targets, nine are real fighters...We are lucky to have
them...They make the battle. Ah, but the one, one of them is a
warrior...and He will bring the others back.
-Hericletus (circa 500 B.C.)

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Jim_Rob said:

*I bet they'll be plenty strong enough. I will turn Owen and Nate
loose with one and we'll find out. *

Yeah Nate will kick the [censored] out of them. He will be a great tester.
Im very interested in how these will turn out!

--
dubmuni2004 - Ride it like you stole it

hey look, I typed something here

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I thought I would bump this thread with a picture of the QR on the
frame. We have just put together a couple of prototypes to test out. So
far the QR bearing holder works like I expected. It takes less than 30
seconds, and no tools, to completely swap out a wheel set, and that was
the 2nd time I tried it. Right now we have a modified Yuni frame that
I'm using for my Beast 29er and two prototypes that Owen and Nate are
working on. Everyone is welcome to check out the real thing at Moab.

+----------------------------------------------------------------+
| Attachment filename: qr_detail.jpeg |
|Download attachment: http://www.unicyclist.com/attachment/291986|
+----------------------------------------------------------------+

--
Jim_Rob - Old Man

TTFN

JR

"Riding uphill on a unicycle sucks", Walt, Nationally-ranked singlespeed
MTB racer
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That looks awesome. Do you have to fiddle with the quick release lever
to get the right tension on the bearings?

--
tholub - Kinetic Sculptor
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There was a guy at the German Muni& Trials Weekend with quick release
bearing holders on a very custom muni.

I didnt have much time to inspect them but they did look a bit more
complicated than yours, Jim. The clamp arms were positioned on the sides
of the bearing holders so that they were vertical and couldnt be hit on
a crank grab.

I think the owner was either Lukas Bier or Jan Meissner from Chocen,
Czech Republic.....although i could be wrong.

Photos are trickling in from the weekend just now. If i see any pics of
the uni or learn more about who the rider was, ill let you know.

Cool stuff!

erik

--
mango - unity - as 1 stand together

*I never post drunk but I always post stupid. *-harper
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I'm going to have to try that at moab, it looks like fun. I really wanna
try the 190 mm cranks, those have got to be crazy.

--
Fuego - Unicycle Ninja

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balance."

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